Groove Tubes

Andy Nathan checks out a Stromberg-Carlson PA amplifier during the clearance sale at Groove Tubes in San Fernando this week. The business was sold to Fender Musical Instrument Corp. in June.

Andy Nathan checks out a Stromberg-Carlson PA amplifier during the clearance sale at Groove Tubes in San Fernando this week. The business was sold to Fender Musical Instrument Corp. in June. (Ricardo DeAratanha / Los Angeles Times)